Species Details

Trifolium howellii

Howell's clover

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Classification

Scientific Name: Trifolium howellii Wats.
Common Name: Howell's clover
Family:	Fabaceae
Element Code:	PDFAB40140
USDA Plants Symbol:	TRHO
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	4.3
Fed List:	None
State List:	None
Global Rank:	G4
State Rank:	S4
Other Status:
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2022-06-08

Ecology and Life History

Lifeform: perennial herb

Blooming Period: Jun-Aug

Elevation:
800 - 1800 meters
2625 - 5905 feet

General Habitats:

Lower montane coniferous forest
Meadows and seeps
Upper montane coniferous forest

Microhabitat Details:

Microhabitat:

Mesic

Notes

Notes:
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	0
	Total EOs	% of EOs
EOs with Threat Listed:	0	0 %

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					0
A	B	C	D	X	U
0	0	0	0	0	0

Occurrence Status:
Historical >20 Years	0
Recent <=20 Years	0

Presence:
Presumed Extant	0
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA), Oregon (OR)

California Counties and Islands: Name (Code)
Del Norte (DNT), Humboldt (HUM), Siskiyou (SIS)

Quads: Name (Quad Code)
Takilma (4212315), Grouse Mtn. (4012376), Marble Mountain (4112352), Ukonom Mtn. (4112354)

Notes:

Definitions of codes following a county and/or quad:
*		Presumed extirpated
(?)		Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.

Regional Map

Map

Presumed Extant

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CNPS Rare Plant Inventory